1228512044 has 24 divisors (see below), whose sum is σ = 2173764768. Its totient is φ = 607461120.

The previous prime is 1228512037. The next prime is 1228512053. The reversal of 1228512044 is 4402158221.

It is a junction number, because it is equal to n+sod(n) for n = 1228511998 and 1228512016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217334 + ... + 222914.

It is an arithmetic number, because the mean of its divisors is an integer number (90573532).

Almost surely, 2^1228512044 is an apocalyptic number.

It is an amenable number.

1228512044 is a deficient number, since it is larger than the sum of its proper divisors (945252724).

1228512044 is a wasteful number, since it uses less digits than its factorization.

1228512044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185 (or 6183 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 1228512044 is about 35050.1361480951. The cubic root of 1228512044 is about 1071.0090472607.

The spelling of 1228512044 in words is "one billion, two hundred twenty-eight million, five hundred twelve thousand, forty-four".